Who discovered the first aurora?

Well...The French astronomer Pierre Gassendi ( 1592 - 1655) is often credited
with being the first to NAME them the aurora borealis or Northern Lights, but
we know that these have been observed by ancient Chinese and ancient Greek
peoples. Eskimo and Scandanavian peoples have a long oral tradition of
referring to the northern lights that goes back at least as far as 700 A.D.